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Which of the following does not indicate...

Which of the following does not indicate high level of pollutants or the toxic substances I) High DO value II) High COD value Ill) High BOO value IV) High TLV The correct combination is

A

All are correct

B

I and IV only

C

II and III only

D

III and IV only

Text Solution

Verified by Experts

The correct Answer is:
B
High COD value , High TLV
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AAKASH SERIES-ENVIRONMENTAL CHEMISTRY-ADDITIONAL PRACTICE EXERCISE (LECTURE SHEET)
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  4. The study of toxicity of organo metallic compounds is termed as

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  6. The source of CO2 in the atmosphere is

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  7. Which is incorrect about 'green house effect'

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  8. The species formed in the depletion of ozone layer by chlorotlurocarbo...

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  9. Ozone is useful in and harmful in

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  10. Carcinogenic pollutant is

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  11. Which of the following is a sink for CO ?

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  12. Depletion of ozone layer causes

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  13. The type of hybridisation of carbon atoms of the molecule of the gas i...

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  15. The loss or reduction of chlorophyll in the leaves is termed as

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  16. Increase in concentration of pollutant by the process of food chains i...

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  18. Which of the following is not an algae nutrient?

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  19. Lakes containing excess of nuritious substance are called

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  20. Which of the following decreases the dissolved oxygen in water?

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